IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0624481
(2007-01-18)
|
등록번호 |
US-7665601
(2010-04-09)
|
우선권정보 |
FR-06 00437(2006-01-18) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
14 인용 특허 :
18 |
초록
▼
A dehydrating container made of a thermoplastic polymer suitable for packaging products sensitive to ambient humidity, said containing comprising: a visual humidity state indicator, a container body forming a casing, closed at one of its ends by a base and open at another end thereof, a reclosable c
A dehydrating container made of a thermoplastic polymer suitable for packaging products sensitive to ambient humidity, said containing comprising: a visual humidity state indicator, a container body forming a casing, closed at one of its ends by a base and open at another end thereof, a reclosable closure capable of cooperatively fitting on the open end of said casing, optionally, a connector placed between the closure and the casing, and a humidity absorber inside the containing for absorbing humidity from the atmosphere inside the container. The absorber comprises a dehydrating agent and the reclosable closure comprises a visual humidity state indicator that changes color according to the existing humidity level and/or to a maximum humidity level. The visual indicator is advantageously located on an internal surface of the closure.
대표청구항
▼
The invention claimed is: 1. A dehydrating container made of a thermoplastic polymer suitable for packaging products sensitive to ambient humidity, said dehydrating container comprising: a container body forming a casing, closed at one of its ends by a base and open at another end thereof, a reclos
The invention claimed is: 1. A dehydrating container made of a thermoplastic polymer suitable for packaging products sensitive to ambient humidity, said dehydrating container comprising: a container body forming a casing, closed at one of its ends by a base and open at another end thereof, a reclosable closure capable of cooperatively fitting on said open end of said casing, said closure comprising a visual humidity state indicator that changes color according to the existing humidity level and/or to a maximum humidity level, said visual humidity state indicator being located on an internal surface of said reclosable closure, a connector placed between the reclosable closure and the casing, and a humidity absorber inside said container for absorbing humidity from the atmosphere inside the container, said absorber comprising a dehydrating agent. 2. A dehydrating container according to claim 1, wherein the closure further comprises a permanent visual colored indicator for determining the level of humidity of the internal atmosphere by comparing the color of the visual humidity state indicator with the color of the permanent visual colored indicator, said permanent visual colored indicator being placed on the internal surface of said closure. 3. A dehydrating container according to claim 1, wherein the visual humidity state indicator comprises an ink composition reactive to humidity that is reversible or irreversible. 4. A dehydrating container according to claim 3, wherein the ink composition comprises at least one reactant metal salt selected from the group consisting of cobalt, iron, and copper in the form of chloride, bromide, iodide, sulfate, thiocyanate, and phosphate. 5. A dehydrating container according to claim 1, wherein a reactive ink composition is deposited on a substrate. 6. A dehydrating container according to claim 5, wherein the substrate on which the composition is deposited is selected from the group consisting of a paper, a non-woven fabric and a polymer film. 7. A dehydrating container according to claim 1, wherein the visual humidity state indicator comprises a transparent coating or film that is porous to steam on a surface thereof in contact with the product to be packaged, and wherein said coating serves as a barrier to diffusion of substances present in the reactive ink. 8. A dehydrating container according to claim 5, wherein the substrate is attached to an internal surface of the closure by bonding, an adhesive, a thermobonding and/or a mechanical connection. 9. A dehydrating container according to claim 8, wherein the substrate is attached to an internal surface of the closure by thermobonding by an in-mold labelling technique. 10. A dehydrating container according to claim 1, wherein the closure is selected from the group consisting of wedge-on caps, screw caps and cover-caps. 11. A dehydrating container according to claim 10, wherein the closure comprises a reclosable cover-cap. 12. A dehydrating container according to claim 1, wherein the closure is connected to the container body by a removable mechanical hinge connector or an integral hinge connector. 13. A dehydrating container according to claim 1, wherein the closure is secured to the container body by a hinge placed between an attachment ring and said closure. 14. A dehydrating container according to claim 1, wherein the dehydrating agent is selected from the group consisting of silica gels and molecular sieves, in the form of a powder or deposited on a powder medium. 15. A dehydrating container according to claim 1, wherein the humidity absorber comprises a dehydrating lining, fitting the inside of the container body. 16. A dehydrating container according to claim 15, wherein the humidity absorber comprises an injectable dehydrating composition comprising at least one polymer and at least one dehydrating material. 17. A dehydrating container according to claim 16, wherein the dehydrating material is selected from the group consisting of molecular sieves and silica gels. 18. A dehydrating container according to claim 1, wherein the thermoplastic polymer is selected from the group consisting of polymers and/or copolymers of ethylenes, propylenes, ethylene-propylene and mixtures thereof, polyamides, polystyrenes, acrylonitrile-butadiene-styrene copolymers, styrene-acrylonitrile copolymers, polyvinylchlorides, polycarbonates, methyl polymethacrylates, polyethyleneterephthalates, polylactic acids, and biodegradable polymers. 19. A method for packaging and/or monitoring the state of a product sensitive to humidity comprising packaging said product in a dehydrating container according to claim 1.
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